First Medical App System to Monitor Glucose Cleared in U.S.

DexCom Inc. (DXCM) won U.S. clearance for the first system of glucose-monitoring apps that can be used with mobile devices such as the iPhone to remotely track the health of a diabetic.

The Food and Drug Administration gave the green light to the Dexcom Share system, which transmits data from a small, wire-like sensor inserted just under the skin, according to a statement Friday from the agency. Other similar systems exist, but none has been cleared for sale by the agency since the...